Secure DNS

In order to understand Secure DNS, we first need a basic understanding of DNS. The internet uses IP addresses for all connected devices. These IP addresses are like a location identifier and allow your computer to find the location of a server with a specific IP address. Instead of trying to remember IP addresses, we can ask DNS to translate a domain name (NerdSec.io) into an IP address. After our device has the IP address of the server, we can then connect to the server and access the website.

We can break down Secure DNS even further so that we fully understand all of the parts that make the whole.

Encrypted Queries

Regular DNS sends your query to the DNS server in plaintext. This allows anyone on your network, or even your ISP, to see what you’re querying. Secure DNS uses the same type of encryption your browser uses when visiting a secure website. This encryption prevents anyone from snooping on your DNS queries. This privacy feature is also a very important part of Secure DNS. Without it, hackers can track your behavior and even intercept your queries and send you back malicious IPs.

Intelligent Responses

Most DNS servers will give you the IP address of a malicious domain without any consideration. So, if you were to click a malicious link in an email, you would get the IP address of the malicious server. Secure DNS tracks the reputation of domains and the IP addresses to which they resolve. With Secure DNS, if you click on the malicious link, it would respond with an invalid IP, which would prevent you from reaching the malicious website.

Anomaly Detection

NerdSec Anomaly Detection brings enterprise-grade intelligence to your network. Every DNS request is analyzed privately and securely using advanced AI and machine-learning models that learn your network’s behavior over time. When something looks unusual; whether it’s a hidden malware connection or a misconfigured app; you’re alerted instantly. It’s like having a tireless security analyst watching over your traffic 24/7; protecting your business while preserving speed, privacy, and reliability.